Okean Soviet Military Storm-Troopers CHRONOGRAPH Sturmanskie 1MChZ. First State Watch Factory Moscow USSR CHRONOGRAPH. Sturmanskie watch with a pointer of time zones (model 3133). This is very useful for the tracking of a second time zone and can be adjusted by turning the crown at 9. The production of these watches was limited and subjected to strict military inspections. The case back carries the logo of the Russian Airforce (Soviet Union period). Width: 45 mm (with crown) Height: 45 mm (with holders of a strap) Thickness: 14 mm Lug size : 18 mm. Vintage condition with plating wear and scratches. You should expect some wear and minor scratches from use. Please look closely at the photos. The watch runs well and keeps accurate time. The chronograph functions works well. Made in Russia (Soviet Union period). Great opportunity for collectors! For more info please see a actual pictures.